Police officers from all over the state were called into Boston to help following the Boston Marathon bombings, which occurred 100 days ago.

Four Norwell officers were included in that response and were commended by the Norwell Board of Selectmen shortly afterward.

NPD Officer Bryan Resnick said he knew how unusual of a situation he was in when he helped in Boston and in the manhunt in Watertown that immediately followed the attack.

“It was definitely a historically relevant period in American policing,” he said. “We were there and got to play a helpful role.”

Resnick, along with NPD Sgt. Tim O’Brien and fellow NPD Officers Ken Camerota and Dan Dooley, were sent to Boston to help almost immediately after the bombings happened that Monday. They didn’t get back to Norwell until Thursday night of that week.

When in Boston, Resnick said, the team he was on served as a security unit for several venues in Boston; the unit would serve 12-hour shifts. Soon, Resnick and the other officers were sent to Watertown to help conduct the search for Dzhokhar Tsarnaev, the suspect in the marathon bombings.

Resnick was on the Special Weapons and Tactics (SWAT) side of efforts following the bombing. O’Brien said he had a different experience as a member of a Rapid Response Team (RRT).

“Throughout the week, we had different responsibilities,” O’Brien said. “We were at Boston City Hospital for a while and provided security for the city of Cambridge so members of that department could attend the funeral for Sean Collier [the MIT officer who was allegedly shot and killed by the marathon bombing suspects after the bombings].”

O’Brien said the RRT team was given several different missions throughout each day, usually involving verifying the safety of an area.

“It was surreal,” he said. “Things changed daily or even hourly.”

Both officers said the situation was a lot easier to handle because of the amount of training they had gone through before. O’Brien said it helped him to think about other events he has helped with in Boston.

“I took part in the Democratic National Convention and I was across from Fenway Park when the Red Sox won their first World Series,” he said. “But, obviously, with the loss of life, the injuries and the global stage, this one was different.”

Resnick said that, as far as he knew, it was unlike anything that had ever happened in American history. He said it is important to remember what happened.

“It was something we can grow and learn from,” he said. “So that, God forbid, if we ever had a similar situation, we’d know what to do all the better.”